Uhhhh. No.
It does not matter if you have a cracked Vista or a non cracked Vista, or a Cracked XP or Non cracked XP.
A cracked version (unless you suck
) Will be able to update fully like normall. Thats what a crack is supposed to DO! Trick the system into thinking that your copy of windows is legit.
I know this, as my Windows Vista Ultimate SP1 is fully 100% cracked.